JP2503392B2 - Preheating type heater device for vehicles - Google Patents
Preheating type heater device for vehiclesInfo
- Publication number
- JP2503392B2 JP2503392B2 JP13825085A JP13825085A JP2503392B2 JP 2503392 B2 JP2503392 B2 JP 2503392B2 JP 13825085 A JP13825085 A JP 13825085A JP 13825085 A JP13825085 A JP 13825085A JP 2503392 B2 JP2503392 B2 JP 2503392B2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- hot water
- control
- preheater
- heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2218—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/03—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant
- B60H1/034—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant and from a source other than the propulsion plant from the cooling liquid of the propulsion plant and from an electric heating device
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は車両用の予熱式ヒータ装置に関し，特に大型
バスに装着される予熱式ヒータ装置に関する。The present invention relates to a preheat type heater device for a vehicle, and more particularly to a preheat type heater device mounted on a large bus.
従来の大型バス用予熱式ヒータ装置には、予熱機の温
水入口側に予熱機運転の必要性を決定する運転制御温度
スイッチと、ヒータ装置内の温水温度が上昇し暖房可能
になったことを示す湯温上昇確認温度スイッチとの２個
の温度スイッチが必要であった。また、予熱機の温水出
口側には、温水流量が減少して出口水温が異常に高くな
った場合や、運転制御温度スイッチが故障し、予熱機の
運転が連続的になって出口水温が異常に高くなった場合
に、予熱機の運転を停止させるための過熱防止温度スイ
ッチが取り付けられている。温水入口側に設けられた運
転制御温度スイッチのオン，オフにより予熱機の運転お
よび停止が繰り返されるのに対し、温水出口側に設けら
れた過熱防止温度スイッチは一度でもオフすれば、予熱
機は停止しその後、温度が下がって過熱防止温度スイッ
チがオンしても予熱機が運転しないように再起動防止回
路が形成されている。In the conventional preheater heater for large buses, there is an operation control temperature switch that determines the necessity of preheater operation on the hot water inlet side of the preheater, and the hot water temperature in the heater device rises to enable heating. Two temperature switches were required, the temperature switch for confirming the hot water temperature rise. Also, on the hot water outlet side of the preheater, if the hot water flow rate decreases and the outlet water temperature becomes abnormally high, or the operation control temperature switch fails, the preheater operation continues and the outlet water temperature becomes abnormal. An overheat prevention temperature switch is installed to stop the operation of the preheater when the temperature becomes extremely high. While the operation and stop of the preheater are repeated by turning on and off the operation control temperature switch provided on the hot water inlet side, the preheater will not operate if the overheat prevention temperature switch provided on the hot water outlet side is turned off even once. A restart prevention circuit is formed so that the preheater does not operate even if the temperature is lowered and the overheat prevention temperature switch is turned on after the stop.
このように、従来装置では、全部で３個の温度スイッ
チを使用しているため、温度スイッチに関するコストが
上昇するのみならず、温度スイッチの座も３個必要であ
るため、やはりコストアップになる等の問題点がある。
またヒータ装置上では予熱機の運転および停止を温水入
口側にある運転制御温度スイッチのみで制御しているた
め、温水配管のつまりによる温水流量の低下があった場
合、運転制御温度スイッチよりも先に過熱防止温度スイ
ッチが作動して、予熱機を停止し、再起動防止を行った
後異常表示等をするので、安全性の面では良いかもしれ
ない。しかし、別の見方をすれば冬期の厳寒地等におい
て、一般の乗客を大量に乗せた大型観光バスが、温水配
管のつまりによる温水流量の低下により、予熱機がまっ
たく使えなくなるというのも問題である。As described above, in the conventional device, since three temperature switches are used in total, not only the cost related to the temperature switch increases, but also three seats for the temperature switch are required, which also increases the cost. There are problems such as.
Also, on the heater device, the operation and stop of the preheater are controlled only by the operation control temperature switch on the hot water inlet side, so if there is a decrease in the hot water flow rate due to clogging of the hot water pipe, Since the overheat prevention temperature switch is activated, the preheater is stopped, restart is prevented, and then an error message is displayed, which may be good in terms of safety. However, from another point of view, in a severe cold area in winter, a large sightseeing bus carrying a large number of ordinary passengers can not use the preheater at all due to the decrease in hot water flow rate due to the blockage of hot water piping. is there.
本発明は以上のような従来装置の欠点を改善するため
になされたものであり、本発明の目的は温水入口側に温
水サーミスタ（温度が高くなると抵抗値が小になる）を
取付け、運転制御温度と湯温上昇確認温度の２点を検出
すると共に、温水出口側にも同一特性を有する温水サー
ミスタを取付け、過熱防止温度と、新たに運転制御温度
の２点を検出してなる車両用予熱式ヒータ装置を提供す
ることである。The present invention has been made in order to improve the drawbacks of the conventional device as described above, and an object of the present invention is to install a hot water thermistor (the resistance value becomes smaller as the temperature rises) on the hot water inlet side to control the operation. Preheating for vehicles that detects two points, the temperature and the hot water temperature rise confirmation temperature, and also installs a hot water thermistor with the same characteristics on the hot water outlet side to detect two points, the overheat prevention temperature and the new operation control temperature. Type heater device.
本発明は温水入口側の運転制御用の第１の温度センサ
に加えて、温水出口側でも運転制御用の第２の温度セン
サを設け、両温センサからの検出信号を受ける電気制御
回路で構成される。両温度センサが温水入口側の水温と
温水出口側の水温が温水確認温度（例えば75℃）以下の
状態を検出する時、電気制御回路は第１の制御信号を発
生しこれにより予熱ヒータは、運転を開始する。温水入
口側の第１の温度センサが第１の制御温度（例えば78
℃）を越えたことを検出した時、又は温水出口側の第２
の温度センサが第２の制御温度（例えば98℃）を超えた
ことを検出した時、あるいは、第１の温度センサおよび
第２の温度センサがそれぞれ第１の制御温度および第２
の制御温度を同時に超えたことを検出した時には、制御
回路はさらに第２の制御信号を発生し予熱ヒータは停止
し、その後自動断続運転をすると共に、出口温度が第２
の制御温度を超えた時、注意信号（予熱ヒータ・運転表
示ランプを点滅）を出す。According to the present invention, in addition to the first temperature sensor for operation control on the hot water inlet side, a second temperature sensor for operation control is provided on the hot water outlet side as well, and the electric control circuit receives detection signals from both temperature sensors. To be done. When both temperature sensors detect a state where the water temperature at the hot water inlet side and the water temperature at the hot water outlet side are equal to or lower than the hot water confirmation temperature (for example, 75 ° C.), the electric control circuit generates a first control signal, which causes the preheater to Start driving. The first temperature sensor on the hot water inlet side is the first control temperature (eg 78
℃) is detected, or the second on the hot water outlet side
Of the second temperature sensor detects that the temperature sensor exceeds the second control temperature (for example, 98 ° C.), or the first temperature sensor and the second temperature sensor respectively detect the first control temperature and the second temperature.
When it is detected that the control temperature is exceeded at the same time, the control circuit further generates the second control signal, the preheat heater is stopped, and then the automatic interrupting operation is performed and the outlet temperature is set to the second temperature.
When the control temperature of is exceeded, the caution signal (preheat heater / operation display lamp blinks) is issued.
しかし予熱ヒータが停止した後も、温水出口側の温度
が上昇し続け第２の温度センサが過熱防止温度（例えば
105℃）を超えたことを検出した時には、制御回路は異
常の表示をするための制御信号を発生するとともに、予
熱ヒータの再起動防止を行う。何らかの原因により温水
流量の低下が起こっても、温水出口側の第２の制御温度
により予熱ヒータの運転が制御されるため、当期の厳寒
地においても、最小限の暖房は確保された上で、注意警
告信号を出す。However, even after the preheating heater is stopped, the temperature on the hot water outlet side continues to rise and the second temperature sensor detects the overheat prevention temperature (for example,
When it is detected that the temperature exceeds 105 ° C), the control circuit generates a control signal for displaying an abnormality and prevents the preheat heater from restarting. Even if the flow rate of hot water decreases for some reason, the operation of the preheating heater is controlled by the second control temperature on the hot water outlet side, so even in the severe cold region of the current period, minimum heating is ensured. Caution Sends a warning signal.
また安全性の面に関しても温水出口側に過熱防止温度
の検出点を設けているため、温水がまったく流れない場
合は異常検出が可能である。実験によれば、少なくとも
温水が１/minでも流れていれば、正常な運転を行い、
完全に水の流れが0l/minの時にのみ、温水出口側の第２
の制御温度で予熱ヒータは停止するが、その後のオーバ
ーシュートで過熱防止温度まで温度が上昇し、異常表示
をするとともに、予熱ヒータには再起動防止がかかる。In terms of safety, a detection point for the overheat prevention temperature is provided on the hot water outlet side, so that abnormality can be detected when no hot water flows. According to the experiment, if at least 1 minute of hot water is flowing, normal operation is performed,
Only when the water flow is 0 l / min completely, the second hot water outlet side
Although the preheat heater stops at the control temperature of 1, the temperature rises to the overheat prevention temperature due to the subsequent overshoot, an error is displayed, and the preheat heater is prevented from restarting.
本発明によれば、温度センサの個数の減少によるコス
トダウンと、温度センサの取付のための座を減らし、溶
接のコストを低減させることができる効果とともに、温
水流量の低下を検出できる効果がある。ADVANTAGE OF THE INVENTION According to this invention, there is an effect that the cost can be reduced by reducing the number of temperature sensors, the number of seats for mounting the temperature sensors can be reduced, the cost of welding can be reduced, and a decrease in the hot water flow rate can be detected. .
第１図は従来の大型バス用予熱式ヒータシステムの概
略図である。１は予熱式ヒータ本体、２は運転制御温度
スイッチ、３は湯温上昇確認温度スイッチ、４は過熱防
止温度スイッチ、５は電動ウォータポンプ、６は車両ラ
ジエータ、７は車両クーリングファン、８は車両エンジ
ンに取付けられたラジエータサーモスタット、９は車両
エンジン、10は温水式ヒータ放熱器を示す。FIG. 1 is a schematic diagram of a conventional preheat type heater system for a large bus. 1 is a preheating type heater body, 2 is an operation control temperature switch, 3 is a hot water temperature confirmation temperature switch, 4 is an overheat prevention temperature switch, 5 is an electric water pump, 6 is a vehicle radiator, 7 is a vehicle cooling fan, and 8 is a vehicle. A radiator thermostat attached to the engine, 9 is a vehicle engine, and 10 is a hot water heater radiator.
第２図は本発明による大型バス用予熱式ヒータ装置の
概略図である。第１図と同一番号は同一部分を示す。11
は温水入口側サーミスタ、12は温水出口側サーミスタを
示す。FIG. 2 is a schematic view of a preheating type heater device for a large bus according to the present invention. The same numbers as those in FIG. 1 indicate the same parts. 11
Is a thermistor on the hot water inlet side, and 12 is a thermistor on the hot water outlet side.
第３図は本発明装置における電気回路の構成を示す。
21はイグナイタトランス（高電圧発生器）22は着火不良
表示ランプ、23は過熱異常表示ランプ、24は予熱機運転
表示ランプ、25はウォータ−ポンプ運転表示ランプ、26
は燃焼用送風機モーター、27はウォーターポンプモー
タ、28はスパークプラグ、30はブロワモータリレー、31
はメインアンプ、32は燃焼用送風機モータ制御用パワー
トランジスタユニット、33は車両バッテリ、34はCDS光
導電セル、35は燃料ポンプ、37は温度ヒューズ、38は電
流ヒューズ、40は電流ヒューズ、41,42,43,44,45はそれ
ぞれ予熱機フュエルリレ、イグナイタリレ、メインリ
レ、モータスタートリレ、ウォータポンプリレ、47は燃
焼用フエン回転数検出用ピックアップ、48はヒータスイ
ッチ、49は入口側温水サーミスタ50は出口側温水サーミ
スタである。FIG. 3 shows the configuration of an electric circuit in the device of the present invention.
21 is an igniter transformer (high voltage generator) 22 is an ignition failure indicator lamp, 23 is an overheat abnormality indicator lamp, 24 is a preheater operation indicator lamp, 25 is a water-pump operation indicator lamp, 26
Is a blower motor for combustion, 27 is a water pump motor, 28 is a spark plug, 30 is a blower motor relay, 31
Is a main amplifier, 32 is a power transistor unit for controlling a blower motor for combustion, 33 is a vehicle battery, 34 is a CDS photoconductive cell, 35 is a fuel pump, 37 is a temperature fuse, 38 is a current fuse, 40 is a current fuse, 41, 42, 43, 44, 45 are preheater fuel release, igniter release, main release, motor start release, water pump release, 47 is a combustion fan speed detection pickup, 48 is a heater switch, 49 is inlet side hot water thermistor 50 This is a hot water thermistor on the outlet side.
本発明装置の動作を第４図のタイミングチャートに従
って説明する。ヒータスイッチ48がOFF位置から第１段
目位置に切換えられると、その端子（Ｂ），（Ｃ），
（WP）が接続され（第３図におけるスイッチ接続表参
照）、メインリレ43とウォータポンプリレ45が動作しウ
ォータポンプランプ25が点灯してウォータポンプモータ
27が運転される。The operation of the device of the present invention will be described with reference to the timing chart of FIG. When the heater switch 48 is switched from the OFF position to the first stage position, its terminals (B), (C),
(WP) is connected (see the switch connection table in Fig. 3), the main relay 43 and the water pump relay 45 operate, the water pump lamp 25 lights up, and the water pump motor
27 is driven.
ヒータスイッチ48がさらに第２段目位置に切換えられ
ると、ヒータスイッチ48の端子（Ｂ），（Ｃ），（WP）
が接続され（スイッチ接続表参照）、モータスタートリ
レ44が動作する。所定時間経過後（３秒）、パワトラン
ジスタユニット32が動作され、予熱機ファンモータ26が
パワトランジスタユニット32により制御される。ウォー
タポンプリレ45が動作してから所定時間経過後（13秒
後）、イグナイタリレ42およびフュエルリレ41が同時に
動作される。フュエルリレ41がONすることによりフュエ
ルポンプ35が動作し、イグナイタリレ42のONによりイグ
ナイタ21が動作しスパークプラグ28が点火される。炎セ
ンサ34が燃料着火を検出すると、イグナイタリレ42がOF
Fされ、予熱機運転ランプ24が点灯して予熱装置の運転
が開始される。予熱機装置が運転開始後に、入口側温水
サーミスタ49が水温上昇確認温度（40℃）を検出し、こ
の時点でブロワーモータリレ30が動作しブロワモータ
（図示されていない）が運転される。その後、入口側温
水サーミスタ49が78℃の温度を検出すると、フュエルリ
レ41がOFFされ、フュエルポンプ35の運転が停止される
と、炎センサ34は炎の消火を検出する。フュエルリレ41
のOFFから所定時間経過後（120秒）、パワトランジスタ
ユニット32がOFFし、予熱機運転ランプ24が消灯、予熱
機装置の運転が停止される。その後、温水が低下し入口
側温水サーミスタ49が75℃の温度を検出すると、サーミ
スタトリレ44が再びONれ、予熱機ファンモータ26が動作
を開始する。以下、入口側温水温度が75℃と78℃の間に
おいて上述の動作を繰り返す。When the heater switch 48 is further switched to the second stage position, the terminals (B), (C), (WP) of the heater switch 48 are
Is connected (see the switch connection table), and the motor start relay 44 operates. After a lapse of a predetermined time (3 seconds), the power transistor unit 32 is operated and the preheater fan motor 26 is controlled by the power transistor unit 32. After a lapse of a predetermined time (13 seconds) from the operation of the water pump relay 45, the igniter relay 42 and the fuel relay 41 are simultaneously operated. When the fuel relay 41 is turned on, the fuel pump 35 is operated, and when the igniter relay 42 is turned on, the igniter 21 is operated and the spark plug 28 is ignited. When the flame sensor 34 detects fuel ignition, the igniter relay 42
Then, the preheater operation lamp 24 is turned on and the operation of the preheater is started. After the operation of the preheater device, the inlet-side hot water thermistor 49 detects the water temperature rise confirmation temperature (40 ° C.), at which point the blower motor relay 30 operates and the blower motor (not shown) is operated. Thereafter, when the inlet-side hot water thermistor 49 detects a temperature of 78 ° C., the fuel relay 41 is turned off, and when the operation of the fuel pump 35 is stopped, the flame sensor 34 detects the extinction of the flame. Fuel Lille 41
After a lapse of a predetermined time (120 seconds) from turning off, the power transistor unit 32 is turned off, the preheater operation lamp 24 is turned off, and the operation of the preheater device is stopped. After that, when the hot water drops and the inlet-side hot water thermistor 49 detects a temperature of 75 ° C., the thermistor trellis 44 is turned on again, and the preheater fan motor 26 starts operating. Hereinafter, the above operation is repeated when the inlet-side hot water temperature is between 75 ° C and 78 ° C.
上記の動作の繰り返しは出口側温水センサ50が出口側
温度98℃以下の状態を検出している場合である。出口温
度センサ50が出口側温水温度98℃を検出すると、フュエ
ルリレ41がOFFされフュエルポンプ35の運転が停止され
る。と同時に温水流量低下注意警告として、予熱機運転
ランプ24が点滅を始める。このとき、炎センサ34は炎の
消炎を検出する。フュエルリレ41がOFFされてから所定
時間後（120秒）、パワトランジスタユニット32がOFFさ
れ、予熱機ファンモータ26が停止される。予熱機ファン
モータ26の停止とともに予熱機運転ランプが完全に消灯
し、予熱機装置は運転を停止する。これにより（実際に
はあり得ないが）出口側温度が低下して出口側温水サー
ミスタ50が出口側温度75℃を検出しても、入口側サーミ
スタ49が依然として入口温度78℃を検出している間は予
熱機装置は動作を開始せず、入口および出口サーミスタ
が共に75℃を検出した時点ではじめてモータスタートリ
レ44が再びONする。以下、上述した予熱機装置の正常運
転動作が繰り返される。The above operation is repeated when the outlet side hot water sensor 50 detects a state where the outlet side temperature is 98 ° C. or lower. When the outlet temperature sensor 50 detects the outlet-side hot water temperature of 98 ° C., the fuel relay 41 is turned off and the operation of the fuel pump 35 is stopped. At the same time, the preheater operation lamp 24 starts blinking as a caution warning of a decrease in the hot water flow rate. At this time, the flame sensor 34 detects the extinction of the flame. A predetermined time (120 seconds) after the fuel relay 41 is turned off, the power transistor unit 32 is turned off and the preheater fan motor 26 is stopped. When the preheater fan motor 26 is stopped, the preheater operation lamp is completely extinguished, and the preheater device stops operating. As a result, although the outlet temperature decreases (although this is not possible in practice) and the outlet hot water thermistor 50 detects the outlet temperature of 75 ° C, the inlet thermistor 49 still detects the inlet temperature of 78 ° C. During that time, the preheater device does not start operating, and the motor start relay 44 is turned on again only when the inlet and outlet thermistors detect 75 ° C. Hereinafter, the normal operation operation of the preheater device described above is repeated.
ヒータスイッチ48がOFF位置にされると、フュエルリ
レ41がOFFされると共に、ブロワーモータリレ30がOFFさ
れる。フュエルリレ41がOFFされてから所定時間経過後
（120秒）、メインリレ43、ウォータポンプリレ45、ウ
ォータポンプリレ25、パワートランジスタユニット32、
および予熱機運転ランプ24がそれぞれOFFにされ、予熱
機装置は運転を終了する。第５図は上述した作動を行う
ためのメインアンプの制御プログラム中、本発明の要旨
とかかわる主部を表したフローチャートである。When the heater switch 48 is turned to the OFF position, the fuel relay 41 is turned off and the blower motor relay 30 is turned off. After a predetermined time has passed since the fuel relay 41 was turned off (120 seconds), the main relay 43, the water pump relay 45, the water pump relay 25, the power transistor unit 32,
The preheater operation lamp 24 is turned off, and the preheater device ends the operation. FIG. 5 is a flow chart showing a main part relating to the gist of the present invention in the control program of the main amplifier for performing the above-described operation.
なお、第４図における破線部分はいずれの状態でも出
力には影響しないことを示す。The broken line portion in FIG. 4 indicates that the output is not affected in any state.
第１図は従来の大型車両用予熱式ヒータシステムの概略
構成図である。 第２図は本発明に係る車両用予熱式ヒータ装置の概略構
成図である。 第３図は本発明ヒータ装置における電気制御回路の構成
図である。 第４図は第３図における本発明装置の動作を説明するた
めのタイミングチャートである。 第５図は第３図におけるメインアンプ31の制御プログラ
ムを説明するためのフローチャートである。 〔符号の説明〕 １……予熱式ヒータ,2……運転制御温度スイッチ,3……
湯温上昇確認温度スイッチ,4……過熱防止温度スイッ
チ,5……電動ウォータポンプ,6……車両ラジエータ,7…
…車両クーリングファン,8……ラジエータサーモスタッ
ト,9……車両エンジン,10……温水式ヒータ放熱器,11,4
9……温水入口側サーミスタ（第１の温度センサ）,12,5
0……温水出口側サーミスタ（第２の温度センサ）,31…
…メインアンプ（温度制御回路）。FIG. 1 is a schematic configuration diagram of a conventional preheater heater system for large vehicles. FIG. 2 is a schematic configuration diagram of a vehicle preheating type heater device according to the present invention. FIG. 3 is a block diagram of an electric control circuit in the heater device of the present invention. FIG. 4 is a timing chart for explaining the operation of the device of the present invention in FIG. FIG. 5 is a flow chart for explaining the control program of the main amplifier 31 in FIG. [Explanation of symbols] 1 ... Preheat type heater, 2 ... Operation control temperature switch, 3 ...
Hot water temperature rise confirmation temperature switch, 4 …… Overheat prevention temperature switch, 5 …… Electric water pump, 6 …… Vehicle radiator, 7…
… Vehicle cooling fan, 8 …… Radiator thermostat, 9 …… Vehicle engine, 10 …… Hot water heater radiator, 11,4
9: Hot water inlet side thermistor (1st temperature sensor), 12, 5
0 …… Thermistor (second temperature sensor) on the hot water outlet side, 31…
… Main amplifier (temperature control circuit).
Claims (1)
受ける入口端部が設けられ、他端にヒータ放熱器に温水
を放出する出口端部が設けられた予熱ヒータと、 前記予熱ヒータの入口端部に設けられ、前記エンジン本
体の冷却水が所定の温度になったことを示す温水確認温
度および該温水確認温度より高い前記予熱ヒータを制御
するための第１の制御温度を検出する第１の温度センサ
と、 前記予熱ヒータの出口端部に設けられ、前記温水確認温
度および前記第１の制御温度より高い前記予熱ヒータを
制御するための第２の制御温度および該第２の制御温度
より高い前記予熱ヒータの過熱を防止するための過熱防
止温度を検出する第２の温度センサと、 前記第１および第２の温度センサに接続され、前記第１
および第２の温度センサが共に前記温水確認温度以下を
検出したときに前記予熱ヒータの動作を開始させるため
の第１の制御信号を発生し、前記第１の温度センサが前
記第１の制御温度を検出し、および／又は前記第２の温
度センサが前記第２の制御温度を検出したときに、前記
予熱ヒータの動作を停止させるための第２の制御信号を
発生する温度制御回路と、 前記第２の温度センサが前記第２の制御温度を検出した
ときに前記温度制御回路の信号により注意警告を示す手
段と、 前記第２の温度センサが前記過熱防止温度を検出したと
きに前記温度制御回路の信号により予熱ヒータの再起動
防止処置を行う手段と、 を含む車両用予熱ヒータ装置。1. A preheater having an inlet end for receiving cooling water from a vehicle engine main body at one end and an outlet end for discharging hot water to a heater radiator at the other end, and a preheater of the preheater. A hot water confirmation temperature indicating that the cooling water of the engine body has reached a predetermined temperature and a first control temperature for controlling the preheater higher than the hot water confirmation temperature, the first control temperature being provided at the inlet end; No. 1 temperature sensor, and a second control temperature and a second control temperature which are provided at the outlet end of the preheat heater and which control the preheat heater higher than the hot water confirmation temperature and the first control temperature. A second temperature sensor for detecting an overheat prevention temperature for preventing overheating of the preheater, and a first temperature sensor connected to the first and second temperature sensors,
And a second temperature sensor both generate a first control signal for starting the operation of the preheating heater when the hot water confirmation temperature or less is detected, and the first temperature sensor outputs the first control signal. And / or a temperature control circuit that generates a second control signal for stopping the operation of the preheater when the second temperature sensor detects the second control temperature, Means for indicating a caution warning by a signal of the temperature control circuit when the second temperature sensor detects the second control temperature; and the temperature control when the second temperature sensor detects the overheat prevention temperature. A preheating heater device for a vehicle, comprising: means for preventing restart of the preheating heater by a signal from a circuit;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13825085A JP2503392B2 (en) | 1985-06-25 | 1985-06-25 | Preheating type heater device for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13825085A JP2503392B2 (en) | 1985-06-25 | 1985-06-25 | Preheating type heater device for vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS621617A JPS621617A (en) | 1987-01-07 |
| JP2503392B2 true JP2503392B2 (en) | 1996-06-05 |
Family
ID=15217567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13825085A Expired - Lifetime JP2503392B2 (en) | 1985-06-25 | 1985-06-25 | Preheating type heater device for vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2503392B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EA028207B1 (en) * | 2014-09-16 | 2017-10-31 | Акционерное Общество "Казахстанский Дорожный Научно-Исследовательский Институт" (Ао "Каздорнии") | Method for determining temperature and moisture content of road structure and underlying subgrade thereof |
-
1985
- 1985-06-25 JP JP13825085A patent/JP2503392B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS621617A (en) | 1987-01-07 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |